Mobile battery charger



FIG. 1 is a top view of the mobile battery charger with charging cables in a closed position;

FIG. 2 is a left-hand-side view of the mobile battery charger with charging cables in the closed position;

FIG. 3 is a front view of the mobile battery charger with charging cables in the closed position;

FIG. 4 is a right-hand-side view of the mobile battery charger in closed position;

FIG. 5 is a rear view of the mobile battery charger with charging cables in the closed position; and,

FIG. 6 is a bottom view of the mobile battery charger with charging cables in the closed position. 

CLAIM The ornamental design for a mobile battery charger, as shown and described in the Figures. 